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The 39 Clues: Unstoppable Books in Order
Below you'll find the complete list of The 39 Clues: Unstoppable books in publication order. This is generally the recommended reading order for the series.
Reading order verified: April 2026
Quick Answer
What order should I read the The 39 Clues: Unstoppable series? Start with "Nowhere to Run (By: Jude Watson)" (2013) and follow publication order through all 4 books.
The complete The 39 Clues: Unstoppable reading order is listed below in publication sequence.
Publication Order
Nowhere to Run (By: Jude Watson)
2013
Breakaway (By: Jeff Hirsch)
2013
Countdown (By: Natalie Standiford)
2014
Flashpoint
2014
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